| Parameters |
| Mounting Type |
Surface Mount |
| Package / Case |
TO-243AA |
| Surface Mount |
YES |
| Operating Temperature |
-40°C~150°C TA |
| Packaging |
Tape & Reel (TR) |
| Published |
2010 |
| JESD-609 Code |
e3 |
| Part Status |
Obsolete |
| Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
| Number of Terminations |
3 |
| Terminal Finish |
Matte Tin (Sn) |
| Additional Feature |
OPERATION FROM UNREGULATED SUPPLY; REVERSE BATTERY PROTECTION |
| HTS Code |
8542.39.00.01 |
| Technology |
Hall Effect |
| Voltage - Supply |
4.2V~24V |
| Terminal Position |
SINGLE |
| Terminal Form |
FLAT |
| Peak Reflow Temperature (Cel) |
260 |
| Supply Voltage |
12V |
| Terminal Pitch |
1.5mm |
| Time@Peak Reflow Temperature-Max (s) |
40 |
| JESD-30 Code |
R-PSSO-F3 |
| Function |
Latch |
| Current - Supply (Max) |
8mA |
| Qualification Status |
Not Qualified |
| Output Type |
Open Collector |
| Supply Voltage-Max (Vsup) |
24V |
| Supply Voltage-Min (Vsup) |
4.2V |
| Analog IC - Other Type |
ANALOG CIRCUIT |
| Polarization |
South Pole |
| Current - Output (Max) |
25mA |
| Test Condition |
-40°C ~ 150°C |
| Sensing Range |
9mT Trip, -9mT Release |
| Height Seated (Max) |
1.6mm |
| Length |
4.5mm |
| Width |
2.45mm |
| RoHS Status |
ROHS3 Compliant |
A3281LLTTR-T Overview
This Tape & Reel (TR) package protects the magnetic switch from damage. In order to prevent damage to the magnetic switches, they are packaged in TO-243AA packages. A magnetic switch can supply a maximum current of 8mA if it is well designed. For magnetic switches, the maximum current should be 25mA. This document contains 3 terminations. When this switch is functioning, its maximum voltage should be 24V. Normally, this switch will supply 12V voltage for reliable performance. This magnetic switch can supply a voltage as low as 4.2V.
A3281LLTTR-T Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 4.2V~24V
Operating Temperature: -40°C~150°C TA
Mounting Type: Surface Mount
3 Terminations
Output Type: Open Collector
Maximum Supply Current: 8mA
A3281LLTTR-T Applications
There are a lot of Allegro MicroSystems A3281LLTTR-T Magnetic Switches applications.
- Gear reducer RPM
- Conducting objects
- Motor assemblies
- Monitor protections of the safety gates
- Angle sensing
- Geomagnetic field measurements
- Robotics control
- RPM measurement
- Brushless DC (direct current) motor commutation
- Compressor speed